- Preface by Steve Dunn Kevin Murphy, MD is a medical oncologist practicing in Vancouver, British Columbia. Dr. Murphy has an intense interest in empowering his patients through information, and he wrote Adjuvant Chemotherapy to help his patients with their most common questions. Adjuvant Chemotherapy by Kevin Murphy, MD Introduction Adjuvant chemotherapy is the use of drugs as additional ...www.cancerguide.org/adjuvant.html